American College of Cardiology - Hypertrophic Cardiomyopathy
... criteria for HCM is a maximal LV wall thickness greater than or equal to 15 mm, genotype-phenotype correlations have shown that virtually any wall thickness (including those within normal range) are compatible with the presence of a HCM mutant gene (6,17,19,63– 65). Mildly increased LV wall thicknes ...
... criteria for HCM is a maximal LV wall thickness greater than or equal to 15 mm, genotype-phenotype correlations have shown that virtually any wall thickness (including those within normal range) are compatible with the presence of a HCM mutant gene (6,17,19,63– 65). Mildly increased LV wall thicknes ...
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... atrial sites and of activation frequency during AF. Although sympathetic stimulation also decreases atrial ERP, it has no significant effect on these indexes of ERP heterogeneity.27 Perhaps because of its lack of effect on spatial ERP dispersion, sympathetic stimulation was much less effective than ...
... atrial sites and of activation frequency during AF. Although sympathetic stimulation also decreases atrial ERP, it has no significant effect on these indexes of ERP heterogeneity.27 Perhaps because of its lack of effect on spatial ERP dispersion, sympathetic stimulation was much less effective than ...
double superiorvenacava and its associated
... anastomosis between the anterior cardinal veins develops into the left brachiocephalic vein. Most of the blood from the left side of the head and the left upper extremity is thus directed to the right. The terminal portion of the left anterior cardinal vein entering into the left brachiocephalic vei ...
... anastomosis between the anterior cardinal veins develops into the left brachiocephalic vein. Most of the blood from the left side of the head and the left upper extremity is thus directed to the right. The terminal portion of the left anterior cardinal vein entering into the left brachiocephalic vei ...
S0735109707014052_mmc2
... STEMI (p. e135) 7.11.1.2. Role of Echocardiography Class I Echocardiography should be used to evaluate patients with inferior STEMI, clinical instability, and clinical suspicion of RV infarction. (See the ACC/AHA/ASE 2003 Guideline Update for Clinical Application of Echocardiography (226).) Echo ...
... STEMI (p. e135) 7.11.1.2. Role of Echocardiography Class I Echocardiography should be used to evaluate patients with inferior STEMI, clinical instability, and clinical suspicion of RV infarction. (See the ACC/AHA/ASE 2003 Guideline Update for Clinical Application of Echocardiography (226).) Echo ...
Abridged version of the expert consensus document on arterial
... applied on the skin.15 The transit time is determined by means of a correlation algorithm between each simultaneous recorded wave. The operator is able to visualize the shape of the recorded arterial waves and to validate them. Three main arterial sites can be evaluated, mainly the aortic trunk (car ...
... applied on the skin.15 The transit time is determined by means of a correlation algorithm between each simultaneous recorded wave. The operator is able to visualize the shape of the recorded arterial waves and to validate them. Three main arterial sites can be evaluated, mainly the aortic trunk (car ...
Exercise-induced intrapulmonary arteriovenous shunting in healthy
... explain all of the widening of the A-aDO2. Indeed, not all subjects increase V̇A/Q̇ nonuniformity during exercise (45), whereas a widened A-aDO2 is universally observed. It is argued that any difference between the actual A-aDO2 and that predicted from the measured amount of V̇A/Q̇ nonuniformity giv ...
... explain all of the widening of the A-aDO2. Indeed, not all subjects increase V̇A/Q̇ nonuniformity during exercise (45), whereas a widened A-aDO2 is universally observed. It is argued that any difference between the actual A-aDO2 and that predicted from the measured amount of V̇A/Q̇ nonuniformity giv ...
American College of Cardiology/ European Society of Cardiology
... criteria for HCM is a maximal LV wall thickness greater than or equal to 15 mm, genotype-phenotype correlations have shown that virtually any wall thickness (including those within normal range) are compatible with the presence of a HCM mutant gene (6,17,19,63– 65). Mildly increased LV wall thicknes ...
... criteria for HCM is a maximal LV wall thickness greater than or equal to 15 mm, genotype-phenotype correlations have shown that virtually any wall thickness (including those within normal range) are compatible with the presence of a HCM mutant gene (6,17,19,63– 65). Mildly increased LV wall thicknes ...
Minimizing Ventricular Pacing to Reduce Atrial Fibrillation in Sinus
... The mean (±SD) follow-up period was 1.7±1.0 years when the trial was stopped because it had met the primary end point. The median percentage of ventricular beats that were paced was lower in dual-chamber minimal ventricular pacing than in conventional dual-chamber pacing (9.1% vs. 99.0%, P<0.001), w ...
... The mean (±SD) follow-up period was 1.7±1.0 years when the trial was stopped because it had met the primary end point. The median percentage of ventricular beats that were paced was lower in dual-chamber minimal ventricular pacing than in conventional dual-chamber pacing (9.1% vs. 99.0%, P<0.001), w ...
Left ventricular mechanical limitations to stroke volume in healthy
... 7.0.0; GE Medical). 2-D speckle tracking was successful at low and high exercise intensities up to near maximal effort (see Supplemental Video 2). To adjust for inter- and intraindividual variability of HR, raw data were exported to a spreadsheet (Microsoft, Seattle, WA) and normalized to the percen ...
... 7.0.0; GE Medical). 2-D speckle tracking was successful at low and high exercise intensities up to near maximal effort (see Supplemental Video 2). To adjust for inter- and intraindividual variability of HR, raw data were exported to a spreadsheet (Microsoft, Seattle, WA) and normalized to the percen ...
Atrial natriuretic polypeptide is removed by the lungs and released
... show that it is also present in tiny amounts in extra-atria] sites, including the ventricles. Three distinct molecular forms of human atrial natriuretic polypeptide, (Y,/3and y, have been isolatedfrom human atria (19-21). a-human atria1natriuretic polypeptide (human atria] natriuretic factor-[99-126 ...
... show that it is also present in tiny amounts in extra-atria] sites, including the ventricles. Three distinct molecular forms of human atrial natriuretic polypeptide, (Y,/3and y, have been isolatedfrom human atria (19-21). a-human atria1natriuretic polypeptide (human atria] natriuretic factor-[99-126 ...
Colorectal Cancer Surgical Database Preoperative Co
... └> If Yes, time period bet ween last documented myocardial infarction and surgery: ...
... └> If Yes, time period bet ween last documented myocardial infarction and surgery: ...
The Dilemma of Genotype Positive
... (28). Similarly a more recent case report of an elite adolescent swimmer demonstrated resolution of mild LV hypertrophy following 8 wk of exercise cessation (2). There is currently no consensus regarding a standard duration of time needed to produce sufficient decreases in LV wall thickness. Postdec ...
... (28). Similarly a more recent case report of an elite adolescent swimmer demonstrated resolution of mild LV hypertrophy following 8 wk of exercise cessation (2). There is currently no consensus regarding a standard duration of time needed to produce sufficient decreases in LV wall thickness. Postdec ...
Effect of High (200 μg/kg per Minute)
... significant (≥0.05 difference of max Pd/Pa minus min Pd/Pa) variations in Pd/Pa from 15 s post Pd/Pa dip and until the end of a 3-minute adenosine (140 lg/kg per minute) infusion. Thirty patients agreed to participate in a post 5-minute repeat fractional flow reserve assessment using 200 lg/kg per min ...
... significant (≥0.05 difference of max Pd/Pa minus min Pd/Pa) variations in Pd/Pa from 15 s post Pd/Pa dip and until the end of a 3-minute adenosine (140 lg/kg per minute) infusion. Thirty patients agreed to participate in a post 5-minute repeat fractional flow reserve assessment using 200 lg/kg per min ...
Atrial Dysrhythmias
... seen with abnormal ventricular conduction – For this reason they can be confused with PVCs ...
... seen with abnormal ventricular conduction – For this reason they can be confused with PVCs ...
a biphasic role for the voltage
... I’d also like to thank the members of my thesis committee, Al George, Charles Hong, Doug Mortlock, and the chair, Scott Baldwin. Their interest in my research and career are reflected heavily in my thesis. Leaving each committee meeting inspired and enthusiastic about my project was always encour ...
... I’d also like to thank the members of my thesis committee, Al George, Charles Hong, Doug Mortlock, and the chair, Scott Baldwin. Their interest in my research and career are reflected heavily in my thesis. Leaving each committee meeting inspired and enthusiastic about my project was always encour ...
Role of Left Ventricular Diastolic Dysfunction in Predicting
... successful electrical cardioversion is largely unknown. Studies suggest that there may be a link between abnormal LV compliance and the initial development, and recurrence of AF after electrical cardioversion. Although direct-current cardioversion (DCCV) is a well-established and highly effective me ...
... successful electrical cardioversion is largely unknown. Studies suggest that there may be a link between abnormal LV compliance and the initial development, and recurrence of AF after electrical cardioversion. Although direct-current cardioversion (DCCV) is a well-established and highly effective me ...
n-3 (omega-3) polyunsaturated fatty acids prevent acute atrial
... current and the inward rectifier K þ current were increased, whereas sodium current and the rapid component of the delayed rectifier K þ current were unchanged. It is apparent that the acute application of DHA and/or EPA does not necessarily result in the same electrophysiological effects observed a ...
... current and the inward rectifier K þ current were increased, whereas sodium current and the rapid component of the delayed rectifier K þ current were unchanged. It is apparent that the acute application of DHA and/or EPA does not necessarily result in the same electrophysiological effects observed a ...
DATA SHEET LANOXIN
... For women, this result should be multiplied by 0.85. N.B.: These formulae cannot be used for creatinine clearance in children. In practice, this will mean that most patients with heart failure will be maintained on 125 to 250 mcg (0.125 to 0.25 mg) digoxin daily; however in those who show increased ...
... For women, this result should be multiplied by 0.85. N.B.: These formulae cannot be used for creatinine clearance in children. In practice, this will mean that most patients with heart failure will be maintained on 125 to 250 mcg (0.125 to 0.25 mg) digoxin daily; however in those who show increased ...
Echocardiographic Epicardial Fat - Journal of the American Society
... tissue located within the pericardial sac, described as the border between pericardial and intrathoracic fat.27,28 Epicardial and pericardial fat have different embryologic origins. Epicardial, mesenteric, and omental fat all share the same origin from the splanchnopleuric mesoderm.29,30 Pericardial ...
... tissue located within the pericardial sac, described as the border between pericardial and intrathoracic fat.27,28 Epicardial and pericardial fat have different embryologic origins. Epicardial, mesenteric, and omental fat all share the same origin from the splanchnopleuric mesoderm.29,30 Pericardial ...
The Brugada ECG Pattern - Circulation: Arrhythmia and
... fibrillation (VF) in the absence of structural heart disease.1 The typical ECG anomaly is currently known as the Brugada ECG pattern and the conglomerate of features as the Brugada syndrome. Over the years, the Brugada syndrome has been recognized as an important cause of sudden cardiac death in you ...
... fibrillation (VF) in the absence of structural heart disease.1 The typical ECG anomaly is currently known as the Brugada ECG pattern and the conglomerate of features as the Brugada syndrome. Over the years, the Brugada syndrome has been recognized as an important cause of sudden cardiac death in you ...
a study on radial artery in cadavers and its clinicalimportance
... The study of radial artery has gained its utmost importance as it is the second most commonly used graft in CABG and its common use in transcatheter coronary interventions (angioplasty) compared to transfemoral or transbrachial technique due to very less risk of access site related complications. By ...
... The study of radial artery has gained its utmost importance as it is the second most commonly used graft in CABG and its common use in transcatheter coronary interventions (angioplasty) compared to transfemoral or transbrachial technique due to very less risk of access site related complications. By ...
Taser X26 Discharges in Swine: Ventricular
... were exposed to a total of 67 Taser discharges with different vectors, current emitting dart locations, and current directions. All vectors and polarities were repeated at least twice. For most vectors studied, the darts were inserted perpendicular to the skin and to their full depth (12 mm). In one ...
... were exposed to a total of 67 Taser discharges with different vectors, current emitting dart locations, and current directions. All vectors and polarities were repeated at least twice. For most vectors studied, the darts were inserted perpendicular to the skin and to their full depth (12 mm). In one ...
Restricting Excessive Cardiac Action Potential and QT Prolongation
... L-735,821, or HMR-1556 produces little effect on action potential duration (APD) in isolated rabbit and dog ventricular myocytes, the effect of IKs block on normal human ventricular muscle APD is not known. Therefore, studies were conducted to elucidate the role of IKs in normal human ventricular mu ...
... L-735,821, or HMR-1556 produces little effect on action potential duration (APD) in isolated rabbit and dog ventricular myocytes, the effect of IKs block on normal human ventricular muscle APD is not known. Therefore, studies were conducted to elucidate the role of IKs in normal human ventricular mu ...
Initiation of cardiac differentiation occurs in the
... DeHaan, 1963). It has previously been shown that cardiac differentiation begins at stage 7+ and proceeds in a rostral to caudal direction (Bisaha and Bader, 1991; Han et al., 1992; Yutzey et al., 1994). Only those progenitors that had not begun to differentiate were removed for analysis. For mesoder ...
... DeHaan, 1963). It has previously been shown that cardiac differentiation begins at stage 7+ and proceeds in a rostral to caudal direction (Bisaha and Bader, 1991; Han et al., 1992; Yutzey et al., 1994). Only those progenitors that had not begun to differentiate were removed for analysis. For mesoder ...
Myocardial infarction
Myocardial infarction (MI) or acute myocardial infarction (AMI), commonly known as a heart attack, occurs when blood flow stops to a part of the heart causing damage to the heart muscle. The most common symptom is chest pain or discomfort which may travel into the shoulder, arm, back, neck, or jaw. Often it is in the center or left side of the chest and lasts for more than a few minutes. The discomfort may occasionally feel like heartburn. Other symptoms may include shortness of breath, nausea, feeling faint, a cold sweat, or feeling tired. About 30% of people have atypical symptoms, with women more likely than men to present atypically. Among those over 75 years old, about 5% have had an MI with little or no history of symptoms. An MI may cause heart failure, an irregular heartbeat, or cardiac arrest.Most MIs occur due to coronary artery disease. Risk factors include high blood pressure, smoking, diabetes, lack of exercise, obesity, high blood cholesterol, poor diet, and excessive alcohol intake, among others. The mechanism of an MI often involves the rupture of an atherosclerotic plaque, leading to complete blockage of a coronary artery. MIs are less commonly caused by coronary artery spasms, which may be due to cocaine, significant emotional stress, and extreme cold, among others. A number of tests are useful to help with diagnosis, including electrocardiograms (ECGs), blood tests, and coronary angiography. An ECG may confirm an ST elevation MI if ST elevation is present. Commonly used blood tests include troponin and less often creatine kinase MB.Aspirin is an appropriate immediate treatment for a suspected MI. Nitroglycerin or opioids may be used to help with chest pain; however, they do not improve overall outcomes. Supplemental oxygen should be used in those with low oxygen levels or shortness of breath. In ST elevation MIs treatments which attempt to restore blood flow to the heart are typically recommended and include angioplasty, where the arteries are pushed open, or thrombolysis, where the blockage is removed using medications. People who have a non-ST elevation myocardial infarction (NSTEMI) are often managed with the blood thinner heparin, with the additional use angioplasty in those at high risk. In people with blockages of multiple coronary arteries and diabetes, bypass surgery (CABG) may be recommended rather than angioplasty. After an MI, lifestyle modifications, along with long term treatment with aspirin, beta blockers, and statins, are typically recommended.Worldwide, more than 3 million people have ST elevation MIs and 4 million have NSTEMIs each year. STEMIs occur about twice as often in men as women. About one million people have an MI each year in the United States. In the developed world the risk of death in those who have had an STEMI is about 10%. Rates of MI for a given age have decreased globally between 1990 and 2010.